<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>  </title>
    <style>
        span{
            width: 200px;
            height: 50px;
            font-size: 30px;
            display: none;
            border: 1px solid green;
        }

        span:hover{
            color: red;
        }

        div{
            width: 300px;
            height: 100px;
            border: 1px solid blue;
        }

        img{
            width: 100px;
            height: 100px;
        }

        a:link{
            color: green;
        }

        a:visited{
            color: red;
        }

        a:active{
            color: blue;
        }

        input{
            outline: none;
        }

    </style>
</head>
<body>

    <input type="text">
    <textarea name="" id="" cols="30" rows="10"></textarea>
    <button>登录</button>

    <img src="img/manor-2.jpg" alt="">
    <img src="img/manor-3.jpg" alt="">

    <hr>

    <span> 测试 </span>
    <a href="#"> 百度 </a>
    <label for=""> 标签1 </label>

    <hr>

    <h1> 标题1 </h1>
    <h1> 标题2 </h1>

    <p> 段落1 </p>
    <p> 段落2 </p>

    <div> 盒子1 </div>
    <div> 盒子2 </div>

    <ul>
        <li> 元素1 </li>
        <li> 元素2 </li>
    </ul>

    
</body>
</html>